The RWD 23 was a Polish low-wing trainer aircraft of 1938, constructed by the RWD team, that remained a prototype.
RWD 23
RWD (aircraft manufacturer)
RWD was a Polish aircraft construction bureau active between 1928 and 1939. It started as a team of three young designers, Stanisław Rogalski, Stanisław Wigura and Jerzy Drzewiecki, whose names formed the RWD acronym.
Jerzy Drzewiecki and Jerzy Wedrychowski by the RWD-7
RWD-6 in the Challenge 1932.
RWD-8
RWD-13